JP2010046292A - Bathtub unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bathtub unit reducing noises resulting from vibrations of a microbubble generating part. <P>SOLUTION: The bathtub unit 21 includes a suction port 2 and an ejection port 3 which are provided on a bathtub 10, a circulation channel 4 connecting the suction port 2 with the ejection port 3, a circulation pump 5 provided on the channel 4 and the microbubble generating part 7, wherein the generating part 7 is provided on a place between the pump 5 and the ejection port 3 in the channel 4 and not coming in contact with the bathtub 10. A vibration damping part 4a provided between the generating part 7 and the ejection port 3 in the channel 4 is formed of a flexible material. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a bathtub unit, and more particularly, to a bathtub unit provided with a microbubble generator.

  Conventionally, as shown in FIG. 3, a suction port 102 and a jet port 103 provided in a bathtub 110, a circulation path 104 connecting the suction port 102 and the jet port 103, a circulation pump 105 provided in the circulation path 104, and stirring A bathtub unit 101 including a dissolution tank 106 and a microbubble generator 107 is known. In such a conventional bathtub unit 101, the microbubble generator 107 is directly attached to the ejection port 103.

  The micro bubble generating unit is a unit that generates water by dissolving the water in which the air is dissolved by the pump pressure at a stroke to generate micro bubbles. For example, the one disclosed in Patent Document 1 can be used. . In Patent Document 1, as an example of a microbubble generating unit, a microbubble generating unit built in a tank, a pump for pumping out liquid stored in the tank, and liquid discharged from the pump are supplied to one end opening of the casing. A bathtub unit including a return line and a flow rate control valve that adjusts the flow rate of liquid discharged from the pump is disclosed.

JP 2007-21343 A

  The microbubble generator generates high-frequency vibration when bubbles are generated. As described above, conventionally, since the microbubble generating part is directly attached to the jet outlet, this high frequency vibration is directly transmitted to the bathtub, and the bathtub vibrates and generates noise.

  This invention is made | formed in view of the said problem, and it aims at providing the bathtub unit which reduces the noise originating in the vibration of a microbubble generation | occurrence | production part.

  In order to achieve the above object, a bathtub unit according to the present invention includes a suction port and a spout provided in a bathtub, a circulation path connecting the suction port and the spout, a circulation pump provided in the circulation path, and a microbubble generator. The microbubble generator is provided at a position between the circulation pump and the outlet in the circulation path and not in contact with the bathtub, and the circulation path is connected to the microbubble generator and the jet unit. It is characterized in that at least a part between the outlet and the outlet is made of a soft material.

  According to the bathtub unit of the present invention, since the microbubble generator is provided at a position between the circulation pump and the spout in the circulation path and not in contact with the bathtub, the vibration of the microbubble generator is directly Not transmitted to the bathtub. Furthermore, since at least a part of the circulation path between the microbubble generating part and the jet outlet is made of a soft material, the vibration is absorbed by the soft material, and the vibration of the microbubble generating part is indirectly transmitted to the bathtub. Can be reduced.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a schematic view showing a bathtub unit according to the first embodiment of the present invention.

[First embodiment]
The bathtub unit 1 includes a suction port 2 and a spout 3 provided in the bathtub 10, a circulation path 4 connecting the suction port 2 and the spout 3, a circulation pump 5 and a stirring dissolution tank 6 provided in the circulation path 4. And a microbubble generator 7, the microbubble generator 7 is provided in the circulation path 4 between the circulation pump 5 and the outlet 3 and not in contact with the bathtub 10, and the microbubble generator The vibration absorption part 4a interposed between 7 and the jet nozzle 3 is made of a soft material.

  The suction port 2 and the jet port 3 are provided on the wall surface of the bathtub 10. The suction port 2 is an opening for sucking hot water in the bathtub 10, and the spout 3 is an opening for ejecting the sucked hot water into the bathtub 10.

  The circulation path 4 is a channel that is interposed between the suction port 2 and the ejection port 3 and ejects hot water sucked from the suction port 2 from the ejection port 3. In the middle of the circulation path 4, a circulation pump 5, a stirring / dissolving tank 6, and a microbubble generator 7 are provided in order from the side closer to the suction port 2. The circulation path 4 can be made of a rigid material except for the vibration absorbing part 4a interposed between the microbubble generating part 7 and the ejection port 3, but may be made entirely of a soft material.

  The circulation pump 5 is a pump for circulating hot water in the bathtub 10. The stirring and dissolving tank 6 is a tank for mixing and dissolving air in hot water flowing in the circulation path 4.

  The microbubble generating unit 7 uses the fact that water in which the air is dissolved is rapidly accelerated by the stirring / dissolving tank 6 to generate portions where the water pressure is lower than the saturated vapor pressure, and the liquid is vaporized in these portions. This is a mechanism for generating fine bubbles.

  The microbubble generator 7 is provided at a position where it does not contact the bathtub 10, that is, physically separated from the bathtub 10. Specifically, it can be provided in a position near the washing place inside the apron (not shown) attached to the bathtub 10 and not in contact with the bathtub 10. Furthermore, if an apron is provided with an opening and the opening is normally closed with a lid, the microbubble generator 7 can be cleaned and inspected by removing the lid, which is convenient. Here, in order not to transmit the vibration of the microbubble generator 7 to the installation site, it is desirable to attach it to the installation site via a soft material such as resin. In addition, the microbubble generator 7 can be integrated with the stirring and dissolving tank 6. In this way, it is not necessary to individually fix the microbubble generator 7, and the number of parts can be reduced.

  The vibration absorption part 4a which is a part of the circulation path 4 interposed between the microbubble generation part 7 and the jet nozzle 3 is a rubber hose. Here, the material of the vibration absorbing portion 4a is not limited to rubber, and any material may be used as long as it has a soft, flexible or elastic material such as a resin, that is, has a property of absorbing vibration.

  According to the bathtub unit 1 configured as described above, the microbubble generating unit 7 vibrates when the circulating pump 5 is operated and the microbubble generating unit 7 generates the fine bubbles, but the microbubble generating unit 7 Is provided at a position that does not contact the bathtub 10, the vibration is not directly transmitted to the bathtub 10. Moreover, since the vibration absorption part 4a interposed between the microbubble generation part 7 and the jet nozzle 3 is a rubber hose, this vibration is absorbed by the softness of the rubber hose, and this vibration is transmitted to the bathtub 10 indirectly. Nor. In addition, unlike the jet bath, the microbubbles do not generate vibration noise due to the gas-liquid mixed jet downstream of the bubble generation unit, and therefore prevent transmission of vibration generated from the microbubble generation unit 7 which is the bubble generation unit, Most of the vibration noise can be reduced.

[Example]
In the bathtub unit 1 of the present embodiment, the circulation pump 5 was operated, the microbubbles were generated by the microbubble generator 7, and the operating noise was measured. The result was 55 dB.

[Comparative example]
Similar to the conventional bathtub unit, the micro bubble generating part is directly attached to the jet port, and the other points are the same as the bathtub unit 1 of the present embodiment. When fine bubbles were generated and operating noise was measured, it was 66 dB.

  From the above Examples and Comparative Examples, it was found that according to the bathtub unit 1 of the present embodiment, a remarkable driving noise reduction effect can be obtained as compared with the conventional bathtub unit.

[Second Embodiment]
FIG. 2 is a schematic view showing a bathtub unit according to the second embodiment of the present invention. The bathtub unit of the second embodiment is different from the bathtub unit of the first embodiment in that the suction port and the jet outlet are used not only for generating microbubbles but also for generating jet jets. Here, the same code | symbol is attached | subjected to the same member as the bathtub unit which concerns on 1st embodiment, and description is abbreviate | omitted suitably.

  The bathtub unit 21 includes an inlet 2 and an outlet 3 provided in the bathtub 10, a circulation path 24 connecting the inlet 2 and the outlet 3, and a circulation pump 5 and an agitation dissolution tank 6 provided in the circulation path 24. And a microbubble generator 7, a check valve 8, and an electric three-way valve 9. The microbubble generator 7 is located between the circulation pump 5 and the spout 3 in the circulation path 24 and in the bathtub 10. A vibration absorbing portion 24a that is provided at a position where it does not come in contact and is interposed between the microbubble generating portion 7 and the ejection port 3 is made of a soft material.

  The difference from the first embodiment in the bathtub unit 21 of the second embodiment is that the circulation path 24 is branched into two paths on the upstream side of the stirring and dissolving tank 6, and the electric three-way valve 9 is provided at the branch point. The microbubble side circulation path 24b, which is one of the circulation paths 24 branched into two paths, includes a stirring / dissolving tank 6, a microbubble generator 7, and a check valve 8 in order from the upstream. When the circulation path 24 is switched to the micro-bubble side circulation path 24b by the electric three-way valve 9, the micro-bubble is generated and supplied into the bathtub 10 from the outlet 3 as in the bathtub unit of the first embodiment. Can do. Here, the microbubble generator 7 is provided between the circulation pump 5 and the outlet 3 in the circulation path 24 and is not in contact with the bathtub 10, and between the microbubble generator 7 and the outlet 3. The intervening vibration absorbing portion 24a is a soft rubber hose, as in the first embodiment, and the noise reduction effect is also the same as in the first embodiment.

  On the other hand, the jet jet side circulation path 24c, which is the other of the branched circulation paths 24, has an inner diameter that allows a large flow of water to flow. By switching the circulation path 24 to the jet-jet-side circulation path 24c with the electric three-way valve 9 and increasing the output of the pump 5, a large flow of water flow is supplied to the ejection port 3, and a jet jet can be generated.

  Thus, in the bathtub unit 21 of the second embodiment, microbubbles and jet jets can be selectively generated by switching the circulation path with the electric three-way valve 9. If it is such a structure, the suction inlet and jet outlet of a microbubble and a jet jet can be made shared, and the number of the holes vacated in the bathtub 10 can be reduced. Therefore, the design is improved, the number of processes and the number of parts can be reduced, and the cost can be reduced. Thus, the increase in the degree of freedom of configuration is one of the effects of providing the microbubble generating part at a position where it does not contact the bathtub. This is because such a configuration cannot be adopted when the microbubble generator is directly attached to the jet outlet as in the conventional bathtub unit.

  As described above, the bathtub unit of the present invention can be implemented in various forms without departing from the spirit of the bathtub unit. For example, even if the circulation path between the microbubble generating part and the jet outlet is made entirely of a rigid material, the microbubble generating part is directly vibrated because the microbubble generating part is in a position not in contact with the bathtub. Therefore, it is possible to reduce to some extent that the vibration of the microbubble generating part is not transmitted to the bathtub.

It is a schematic diagram which shows the bathtub unit of 1st embodiment. It is a schematic diagram which shows the bathtub unit of 2nd embodiment. It is a schematic diagram which shows the conventional bathtub unit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bath unit 2 Suction port 3 Spout 4 Circulation path 5 Circulation pump 6 Stirring dissolution tank 7 Micro bubble generation part 8 Check valve 9 Electric three-way valve 10 Bath 12 Circulation path 21 Bath unit 24 Circulation path 24b Micro bubble side circulation path 24c Jet jet side circuit

Claims (1)

A bathtub unit comprising a suction port and a spout provided in a bathtub, a circulation path connecting the suction port and the spout, a circulation pump provided in the circulation path, and a microbubble generator. And
The microbubble generator is provided at a position between the circulation pump and the jet outlet in the circulation path and not in contact with the bathtub,
The above-mentioned circulation path is a bathtub unit characterized in that at least a part between the micro-bubble generating part and the jet outlet is made of a soft material.